hyzp_ybqx-Commit001：代码刚转换好，编译通过
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WinUser01
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import 'package:flutter/material.dart';
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import 'package:flutter_screenutil/flutter_screenutil.dart'; //import 'package:flustars/flustars.dart' as flustars; //该组件中有ScreenUtil，// 获取网络图片尺寸flustars.WidgetUtil
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import 'package:hyzp_ybqx/pages/Works/TJXX/tj_data.dart';
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import 'package:hyzp_ybqx/services/EventBus.dart';
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import 'package:hyzp_ybqx/widget/my_Tabs.dart' as my_Tabs;
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import '../../components/commonFun.dart';
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import '../../services/Storage.dart';
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import 'FaceLogin2.dart';
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import 'LoginByName2.dart';
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// class LoginTabsWidget extends StatelessWidget {
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// // This widget is the root of your application.
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// @override
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// Widget build(BuildContext context) {
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// //Flutter 强制竖屏
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// SystemChrome.setPreferredOrientations([
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// DeviceOrientation.portraitUp, //只能纵向
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// DeviceOrientation.portraitDown, //只能纵向
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// ]);
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//
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// return MaterialApp(
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// debugShowCheckedModeBanner: false,
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// title: 'Flutter Demo',
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// theme: ThemeData(
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// primarySwatch: Colors.blue,
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// visualDensity: VisualDensity.adaptivePlatformDensity,
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// ),
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// home: MyHomePage(title: 'Flutter Demo Home Page'),
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// );
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// }
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// }
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class LoginTabsWidget extends StatefulWidget {
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LoginTabsWidget({Key key, this.title}) : super(key: key);
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final String title;
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@override
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_MyHomePageState createState() => _MyHomePageState();
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}
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class _MyHomePageState extends State<LoginTabsWidget> with SingleTickerProviderStateMixin {
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int loginTabs_index = 0;
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//用TabController实现顶部tab切换
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TabController _tabController;
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//try_setState(); //避免如下异常报错
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try_setState() {
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try {
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setState(() {});
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} catch (e) {
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print('setState(() {})异常：${e}');
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}
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}
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@override
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void initState() {
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super.initState();
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//若下面文件不存在，
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// /data/data/com.flutter.hyzp_ybqx/shared_prefs/FlutterSharedPreferences.xml
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// value为null， 会抛出异常：
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// [ERROR:flutter/lib/ui/ui_dart_state.cc(177)] Unhandled Exception: Invalid argument(s): The source must not be null
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// int.parse (dart:core-patch/integers_patch.dart:51:25)
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Storage.getString("tabs_index").then((value) {
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g_iIndex = (null == value) ? 0 : int.parse(value);
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});
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Storage.getString("LoginTabs_index").then((value) {
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loginTabs_index = (null == value) ? 0 : int.parse(value);
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print('loginTabs_index = ${loginTabs_index}');
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//用TabController实现顶部tab切换，并设置默认 Tab。initialIndex: loginTabs_index
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_tabController = TabController(vsync: this, length: 2, initialIndex: loginTabs_index);
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//监听 _tabController 切换事件
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_tabController.addListener(() {
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Storage.setString("LoginTabs_index", _tabController.index.toString());
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print('_tabController.index = ${_tabController.index}');
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});
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//Flutter DefaultTabController 获取/设置当前 Tab - OK
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DefaultTabController.of(_scaffoldKey.currentContext).animateTo(loginTabs_index);
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try_setState();
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});
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//监听统计数据改变事件
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eventBus.on<StatisDataUpdate>().listen((event) {
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print(event.str);
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updateMayLogin();
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});
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}
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//处理延迟登录
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updateMayLogin() {
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//判断从网络获取三种统计数据是否完成
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// if (listZptjStatisAlone.length >= dwSum &&
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// listTodayShtj.length >= dwSum &&
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// listClltjStatisAlone.length >= dwSum) {
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// bMayLogin = true;
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// }
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if (listAllStatisData.length >= dwSum) {
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bMayLogin = true;
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} else {
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bMayLogin = false;
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}
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try_setState();
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}
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dispose() {
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_tabController?.dispose();
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super.dispose();
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}
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double _height = ScreenUtil().setHeight(1026);
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final GlobalKey<ScaffoldState> _scaffoldKey = new GlobalKey<ScaffoldState>();
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@override
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Widget build(BuildContext context) {
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return Container(
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width: double.infinity,
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height: _height,
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child: DefaultTabController(
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length: 2,
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child: Scaffold(
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key: _scaffoldKey,
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backgroundColor: Colors.transparent,
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appBar: PreferredSize(
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preferredSize: Size.fromHeight(50), // here the desired height
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child: AppBar(
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backgroundColor: Colors.transparent,
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bottom: TabBar(
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controller: _tabController,
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indicatorSize: TabBarIndicatorSize.label,
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labelColor: Color.fromRGBO(49, 216, 123, 1),
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unselectedLabelColor: Color.fromRGBO(118, 135, 162, 1),
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//tabs: <Widget>[Tab(text: " 密码登录 "), Tab(text: " 刷脸登录 ")],
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tabs: <Widget>[
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my_Tabs.MyTab(
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text: " 密码登录 ",
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style: TextStyle(fontSize: 18.0, fontWeight: FontWeight.bold)),
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my_Tabs.MyTab(
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text: " 刷脸登录 ",
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style: TextStyle(fontSize: 18.0, fontWeight: FontWeight.bold))
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],
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// tabs: <Widget>[
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// Text(" 密码登录 ", style: TextStyle(fontSize: 18.0, fontWeight: FontWeight.bold)),
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// Text(" 刷脸登录 ", style: TextStyle(fontSize: 18.0, fontWeight: FontWeight.bold)),
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// ],
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),
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),
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),
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body: Stack(
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children: [
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TabBarView(
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controller: _tabController,
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//flutter tabbar禁止手势滑动-OK
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physics: new NeverScrollableScrollPhysics(),
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children: <Widget>[
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LoginByName2(height: _height),
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FaceLogin2(),
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],
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),
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// bMayLogin
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// ? SizedBox.shrink()
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// : Positioned(
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// left: ScreenUtil().setWidth(0),
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// right: ScreenUtil().setWidth(0),
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// top: ScreenUtil().setHeight(297),
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// child: Container(
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// height: 200,
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// width: 400,
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// child: getMoreWidget2(
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// text: '正在获取网络数据 ...',
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// color: Colors.orangeAccent,
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// size: 25.0,
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// strokeWidth: 3.0,
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// fontWeight: FontWeight.w600,
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// edge: 0,
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// height: 60,
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// ), //显示加载中的圈圈,
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// ),
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// ),
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],
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),
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),
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),
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);
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}
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}
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